400010201 has 2 divisors, whose sum is σ = 400010202. Its totient is φ = 400010200.

The previous prime is 400010183. The next prime is 400010231. The reversal of 400010201 is 102010004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 400000000 + 10201 = 20000^2 + 101^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-400010201 is a prime.

It is not a weakly prime, because it can be changed into another prime (400010231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200005100 + 200005101.

It is an arithmetic number, because the mean of its divisors is an integer number (200005101).

Almost surely, 2^400010201 is an apocalyptic number.

It is an amenable number.

400010201 is a deficient number, since it is larger than the sum of its proper divisors (1).

400010201 is an equidigital number, since it uses as much as digits as its factorization.

400010201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 400010201 is about 20000.2550233741. The cubic root of 400010201 is about 736.8125631424.

Adding to 400010201 its reverse (102010004), we get a palindrome (502020205).

The spelling of 400010201 in words is "four hundred million, ten thousand, two hundred one".